From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757769AbYEHLoR (ORCPT ); Thu, 8 May 2008 07:44:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751056AbYEHLoC (ORCPT ); Thu, 8 May 2008 07:44:02 -0400 Received: from smtp-out04.alice-dsl.net ([88.44.63.6]:46822 "EHLO smtp-out04.alice-dsl.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750932AbYEHLoB convert rfc822-to-8bit (ORCPT ); Thu, 8 May 2008 07:44:01 -0400 To: Michael =?utf-8?Q?Elsd=C3=B6rfer?= Cc: linux-kernel@vger.kernel.org Subject: Re: Cannot boot any HIGHMEM kernel (kernel panic - not syncing) From: Andi Kleen References: <4822DDF1.5010500@elsdoerfer.info> Date: Thu, 08 May 2008 13:43:59 +0200 In-Reply-To: <4822DDF1.5010500@elsdoerfer.info> (Michael =?utf-8?Q?Elsd?= =?utf-8?Q?=C3=B6rfer's?= message of "Thu, 08 May 2008 13:03:13 +0200") Message-ID: <87od7h9g1s.fsf@basil.nowhere.org> User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT X-OriginalArrivalTime: 08 May 2008 11:37:01.0811 (UTC) FILETIME=[D514AC30:01C8B0FF] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Michael Elsdörfer writes: > > Now, Machine Check Exception seems to point towards a hardware error, It not only seems to, it does. > but not only does the 486 kernel appear to work flawlessly, the server > was perfectly happy running a self-compiled sarge kernel (with HIGHMEM) > just a couple of days ago. The non highmem kernel will simply not use most of your memory, so if the machine check happens accessing memory you will not see it. -Andi